Skiving machine



July 29A, 1924.

C. Q. REYNOLDS sKIvING MACHINE Filed May g2, 1922 1427 vena? @d1un-Ldo JT/ :wieg

@ma @m Eig. d.'

Patented July `29, 19249.

TES

' CHARLES e. REYNOLDS, or

i i' 1,503,169 PATENT omer.,

SKIVING MACHINE.

Application led May 22, 1922. Serial No. 562,624.

To au whom t may comer/a.' n

Be it known that l, CHARLES Q. REY- NOLDS, a citizen of the United States, residing at St. Louis, State of Missouri, have invented a new and useful Improvement in Skiving Machines, of which the following is a speciiication, reference being had therein tothe accompanying drawings.

This invention relates to a guard for skiving machines, and is designed with special reference to skiving machines of the char acter shown in United States Letters Patent No. 220,906 to Amazeen, dated Getober 2S, 1879, for leather skiving machines.

In the use of skiving machines of this type` it has been found that, after the leather has been skivedby the .rotary cutter, it is liable to curve upwardly with a consequent possibility of being cut-or injured by the rear portion of the cutting disk. To avoid this diiculty the constant attention of the operator is required,- andhe is obliged to di.- rect with his hand that portion of the material which has been fed through the ma-Y` chine and skived,land to hold itdown and away from the rear portion of the cutting member. j

l`The main object of my invention is the provision of a guard so formed that the material, after being skiVed, will be deflected in a downward direction and away from Ythe cutting member, thereby avoiding all possibility of the material being injured by the rear `portion of the cutting member.

Another object of the inventionis the provision of a guard of the character described, which is of simple and efticientconstruction and which is capable of attachment to eX- isting machines, without requiring any changes therein. 1

Other Vobjects of the invention willrbe more specifically set forth and described hereinafter.

In its preferred form my invention contemplates a guard, adapted to kbe attached to the under surface of the cutter, and of a form adapted to deflect the material in a downward direction after it has been cut or skived. Although my invention is designed with special reference to the Amazeen machine above referred to, it may be applied to various other machines of this character. In the accompanying drawings illustrat-V ing one form of my invention, Fig. 1 is a front elevation of the voperative parts of a skiving machine of the construction hereinbefore referred to, showing a guard' applied thereto and constructed in accordance with my invention; Fig. 2 is a bottom plan view of the operative parts shown in and looking upwardly in Fig. l; and Fig; 3 isa central, vertical, sectional view of the cutter with a guard made in accordance with my invention applied thereto.

In the drawings showing one embodiment illustrative of my invention, 1GO indicates a skeleton cuttingdisk, held in position on the end of a shaft 12 between a disk 14 secured to said shaft and an outer locking disk 16. The'outer edge or periphery 18 of the latter disk 16.is bevelled and adapted Vtoengage the bevelled inner edge of the cutting; disk 10, and thereby hold the latter disk in fixed position against a flange 20 on the disk 14. A screw 22 threaded into the end of the shaft serves to hold the locking disk in place.

A feed roll 30, mounted on a shaft 82, cooperates with a feeding disk 36 carried by va shaft 38; the two shafts being substantially perpendicular' to each other.V The feeding portion 40 of the feed roll is slanted, and maybe provided with diagonal corrugations or ribs to grip the material inthe feeding operation.

Secured to a fixed part 42 of the machine .byva screw 44 isa bracket 46 provided with ing downwardly and toward the operator; n

and the free end of the spring bar 52 projects beyond the end ofthe. plate 50, being provided' with a depending portion 58, having its forward face curved for holding down the material and guiding Y it. The spring bar 52 is resilient, and to holdv it downwardly, yet permitting it to yield when necessary, the plate is provided with an upright, iiXed screw pin 60, set in its end and passing loosely through a hole in the spring bar 52. A helical spring 62 is mounted on the pin 60, and bears against the spring bar 52 at its lower end and against a nut 64 at its upper end; which nut maybe sr. Louis, ivnssoUar, AssIeNoiz. To LORENZ Murrina, oF

NEWTON, MAssAcHUsE'rrs. Y

turned Iin oiie rdirection or the lother `to conipresser "rei'leasesaid spring, and thereby adjust the pressure exerted by it on kthe spring bar.` For adjusting the `workhold- `ing portion 58 in a verticaldirection,` a headed screw7 GG is threaded through the spring bar 52, its end engaging the top surface of the plate 50, and by turning this screw the spring bar -inay be raised 'and loir/ered Ain relation to the plate. A set nut 68threadedontliesoreivi serves to hold it Ein adjusted lposition.'

'llof the foregoing parts areof old 'and well-known construction, :and reference ymay lbe made to the patentmazeen yherein re- Afe'rred lto for a more detailed description ot' the v foiegoiiig parts, tlieir'"fi1nctioiis, and "and mode of`opei-`atioii- The novel feature or' my invention resides iirtlie pioyision ,of guard,- which is so formed as 'to deflect vthe -inaterial *after it 1liasbeen s'kived inadownwarddirection'and away' 'from the'cutting disk. r-fhe `guard iiiayfbe f constructed lin vanyy suitable ltorni which -will so deflect Vthe 'materiahend one Asuch fo'rin is shown in the diaiiiings, coin- 'vprisin-g aiguard '70 in Ythe -form of 'an viiiyerted bell yfastened "to the under surface of t, 'tlie iplate i6 which holds 'the cuttingV "diskjin operative position. Any suitable xifn'elans :may be Yproifid'edfor securing the fgiiard in'rplace, and one suclimeans'is shown, Comprising a headed lscrew' 72 threaded into v'the'r'iut `2Qfi'nounted'in the end ot the cutting ldisk shaft 12. A` I l,

'Inthe operationfo a machine, the'fniaterial `Ato be skived is, fend," in Liiiidevrtheguide "57 Y The shaftlQ is set at antangle, so tliattheV Ycutting', disk-'lies in plane slightly-inclined to the plaire I of rthe feed'r disk, vfthe Ldifference vbent/een 'ftliese two planes 'representing the fslairto'f 'the efdgejof Ethe material after it "hasbeeiijskiyed 'The ci`ittin"g`disk 'is operated ata Yhigh "speed, 'and' the material is held 'upel'osely to Vits cu'ttinged'ge Vbythe 'corrufgatfed'portion 4 0 'of the fteed roll 3Q, and the hbodyjportio'n fof the `material is held downfwarfdlyia'way frointhe `ci'itting 'edge by the dependiiigportion 58 ot lthe "plate, 50. "As the fn'aterial isi'e'd fforwlard, it fstikesthe guard 70 secured tothe iinderlsurface of the cutting' disk, -and is deflected 'in a downward hdireetion'away frointlie cuttingedge. i

The deflectin'g 'action of 1 the guard yoverf'coines'the natural'tenden'cy ofthe 'stock to wardl'y-.after it has been skived.

attentionfto the skiving operation, without being obliged to vhold the material down- Furthermoie,'the' guard shown is of simple form 'and 'can bea'pplied to existingmacliines without inif'olvi-ng anychanges or additions, other than the cutting of a threaded hole in the sci'ewQiE in the end ot' Vthecutting disk shaft.

Itis to be understood that my invention is 'not toi-be limited'to theprecise 'term herein kvshown and described, since it may be einbod -ied in various other Vtoi-nis, all within the purview of the following` claims.

what I claim is: y l. A skiving'macliine having, in combina tion, a cutting disk, means located below 'said disk for `feeding thermaterial vto be skived against vthe vlcutting edge of said downwardly and away from the cutting edge 'of fsaid disk.

2. Alskivingfinaehine having, in combination, a cutting disk mounted y:tor rotation,

means located below said disk for feeding 'the"materiall to be skived againstthe cutting fe'dgijer of 'said disk'and lthen'underneath said disk and a hol-low bell-guard centrally "mounted'on'the under side'ot said disk for detlecting sa-id skived material downwardljv *and "a'wayfr'o'in the cutting'edgeof said disk.

3. A skiving machine having, in combinathe cutting`-e`dge of said disk and lthen by the said' disk lon thefeeding side and "ahollow bell-guard mounted on the 'feeding'side of said disk fordelecti'ng the skived material 'away from the said disk and its cutting edge. Y Y

In y'witness whereof, hereunto set iny vliaiid .this 17th day of May, 1.922.

vCHAS. Q. REYNOLDS.

tion, :a cutting disk mounted yfor/rotation, i -ineanson one side 'and oticenter o'ffsaid disk vitorteedingthe material to be s'kiif'edlagainst 

